Granola is a type of cold cereal that is typically made from toasted rolled oats. Individual formulations may vary depending on brand, so that other grains and ingredients may be used. Some people eat granola as a breakfast food, either plain or added to yogurt or milk. In addition to being available in loose form like cereal, granola is commonly packed into bars, which many people eat as an on-the-go convenience meal or snack. To learn more about whether your brand of granola is healthy, start by looking at the nutrition label. Here are some of the good and the not-so-good ingredients in granola: